The new Redray Player from Red plays 4K files as well as upscales HD files to Ultra HD content to a resolution of 4096×2160. Redray connects to 4K displays using a 1.4 HDMI output or one of four HDMI 1.3 outputs, with an additional HDMI output for 7.1 channel audio (for HD displays, Redray uses 1x HDMI 1.3 output). It also supports 3D playback at 48-60fps.
Redray utilizes a 1 TB internal drive to store content and is capable of synchronized video playback to four 1080p displays or two 4K display panels, simultaneously. Multiple Redray players can also be genlocked together to serve large video wall applications.
While the Redray Player is targeted at home theater applications (Red has demo’d it running content on 4K TVs), it also will be used for on-set dailies, in post production, by VOD providers, running video walls and could be used in digital signage applications too. Why video walls? It has four 1080p outputs on HDMI connectors, so it works just fine for a 2×2 wall offering full resolution without a video wall controller.
Playback can also occur at three different levels: 10-, 20- and 40-Mbps. The 40 Mbps level is cinema quality and each minute of content requires a lot more storage space. At the 20Mbps rate, the 1TB hard drive should store about 100 hours of 4K content.
Here are all the specs: http://www.red.com/store/products/Redray-player